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CMake将标题添加到Projectfile

分类: 技术问答 • 2022-07-27 16:38:53
问题描述：

好，因此我的root / CMakeLists.txt中包含以下代码。

Ok so I have the following code in my root/CMakeLists.txt.

cmake_minimum_required(VERSION 2.8)

if(NOT CMAKE_BUILD_TYPE)
    set(CMAKE_BUILD_TYPE Release CACHE STRING "Debug or Release" FORCE)
endif()

if(CMAKE_CONFIGURATION_TYPES)
    set(CMAKE_CONFIGURATION_TYPES "Debug;Release" CACHE STRING "Configurations" FORCE)
    mark_as_advanced(CMAKE_CONFIGURATION_TYPES)
endif()

execute_process(COMMAND ${CMAKE_COMMAND} -E make_directory install)
SET(CMAKE_INSTALL_PREFIX install)

project(efge)

# include
add_definitions(-DEFGE_EXPORTS)
include_directories("${CMAKE_SOURCE_DIR}/include/EFGE/"
            "${CMAKE_SOURCE_DIR}/include/EFGE/Math"
            "${CMAKE_SOURCE_DIR}/include/EFGE/System")

# preconf
set(EFGE_SHARED_LIBS TRUE CACHE BOOL "Shared libraries (needs shared SFML libraries, too)")

if(WIN32)
    set(EFGE_STATIC_STD_LIBS FALSE CACHE BOOL "Statically linked runtime/standard libraries? Must match with SFML-Option.")
    if(EFGE_STATIC_STD_LIBS)
        if(EFGE_SHARED_LIBS)
            message("\nEFGE_STATIC_STD_LIBS and EFGE_SHARED_LIBS aren\'t compatible!")
        elseif(MSVC)
            foreach(flag CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE)
                if(${flag} MATCHES "/MD")
                    string(REGEX REPLACE "/MD" "/MT" ${flag} "${${flag}}")
                endif()
            endforeach()
        elseif(CMAKE_COMPILER_IS_GNUCXX)
            set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -static-libgcc -static-libstdc++")
        endif()
    endif()
endif()

if(CMAKE_COMPILER_IS_GNUCXX)
    set(CMAKE_CXX_FLAGS "${CMAKE_CSS_FLAGS} -std=c++0x")
elseif(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x -stdlib=libc++")
    add_definitions(-DEFGE_USE_STD_RANDOMENGINE)
endif()

set(CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake/Modules/;${CMAKE_MODULE_PATH}")

if(NOT EFGE_SHARED_LIBS)
    set(SFML_STATIC_LIBRARIES TRUE)
endif()
find_package(SFML 2 COMPONENTS audio graphics window system)

if(SFML_FOUND)
    include_directories(${SFML_INCLUDE_DIR})
else()
    set(SFML_ROOT "" CACHE PATH "SFML top-level directory")
    message("\n SFML directory not found. Please set SFML_ROOT to SFML top-level path, wich contains /include/ and /lib/ directories.")
    message("Make sure SFML libraries have the same configuration.")
endif()

# linking sfml
macro(efge_link_sfml EFGE_TARGET)
    target_link_libraries(${EFGE_TARGET} ${SFML_LIBRARIES})
endmacro()
macro(efge_link_sfml_dependencies EFGE_TARGET)
    target_link_libraries(${EFGE_TARGET} ${SFML_DEPENDENCIES})
endmacro()

macro(efge_link_efge EFGE_TARGET)
    target_link_libraries(${EFGE_TARGET} efge)
endmacro()

# source
add_subdirectory(src)

# include
install(DIRECTORY include
        DESTINATION .)

如果这很重要，我的文件结构如下：

My file structure, if this is important, is the following:

+-- include
       +-- Math
            +--- *.hpp files
       +-- System
            +--- *.hpp files
       +--- *.hpp files
+-- src
     +--- *.cpp files
     +--- CMakeLists.txt
+--- CMakeLists.txt

如何将标头添加到生成的项目文件中（例如CodeBlocks）？ Makefile 似乎可以正常工作。 set_group 之类的东西不会影响项目文件。
我无法弄清楚，这是第一次使用CMake。谢谢！

How can I add the headers to my generated projectfile (e.g. CodeBlocks) ? Makefile seems to work fine. Stuff like set_group do not affect the projectfile. I can't figure it out, using CMake for the first time. Thanks!

答

我刚刚检查了以下组合：

I've just checked the following combination:


  1. CMake 2.8.12.1

  2. CodeBlocks 13.12

CodeBlocks项目生成如下：

CodeBlocks project was generated as follows:

mkdir build
cd build
cmake -G 'CodeBlocks - Unix Makefiles' ..

我确实看到生成器生成了一个.cbp文件，其中列出了所有头文件。因此，您可以查看.cbp文件，并检查是否列出了标头。如果不是，则应检查CMake是否足够新鲜。

and I do see that the generator produced a .cbp file with all headers files listed in. So you may view the .cbp file and check if headers are listed. If they're not, then you should check if your CMake is fresh enough.

更新：

我知道了。看来我转载了您的发电机问题。这是最小的无效示例：

Ahha, I see. It seems I've reproduced your problem with the generator. Here's the minimal non-working example:

project/
   CMakeLists.txt
   src/
        CMakeLists.txt
        test.cpp
   include/test.h

项目/CMakeLists.txt：

project/CMakeLists.txt:

cmake_minimum_required(VERSION 2.8)

project(TestProject)

include_directories(include)

add_subdirectory(src)

项目/src/CMakeLists.txt：

project/src/CMakeLists.txt:

cmake_minimum_required(VERSION 2.8)

project(TestProjectSources)

set(SOURCES test.cpp)

add_executable(test ${SOURCES})

project / src / test.cpp

project/src/test.cpp

#include "test.h"

int main(void) {
    TestRun r;
    r.run();
    return 0;
}

project / include / test.h：

project/include/test.h:

#ifndef _TEST_H_
#define _TEST_H_

#include <iostream>

class TestRun {
public:
    TestRun() { std::cout << "Hello World!" << std::endl; }
    void run() { std::cout << "Doing something useful" << std::endl; }
};

#endif // _TEST_H_

在这种情况下，生成器生成TestProject。 cbp没有任何头文件。让我们看看如何解决此问题。

In this case the generator produces TestProject.cbp w/o any header file. Let's see how can this be fixed.

Update2 ：好，我有一些坏消息要告诉你。不幸的是，负责搜索和添加头文件的CodeBlocks生成器的代码块过于简单，无法正确处理您的情况。这是来自CMake来源的 Source / cmExtraCodeBlocksGenerator.cxx 的评论：

Update2 : Well, I have some bad news for you. Unfortunately the code chunk of the CodeBlocks generator responsible for searching and adding header files is too simple to correctly handle your case. Here's the comment from Source/cmExtraCodeBlocksGenerator.cxx from CMake sources:

// The following loop tries to add header files matching to implementation
// files to the project. It does that by iterating over all source files,
// replacing the file name extension with ".h" and checks whether such a
// file exists. If it does, it is inserted into the map of files.
// A very similar version of that code exists also in the kdevelop
// project generator.

因此，您可能会看到，这种方法仅在 test.cpp 和 test.h 并排放置在一个目录中。因此，这就是进一步改进的方向。我建议您通过此论坛主题 http://forums.codeblocks.org/与该人联系。 index.php？topic = 16892.0 并讨论如何改善这种情况。涉及 gcc -MM -I< include directory>也许是合理的在项目生成时调用test.cpp ，但是此方法很昂贵，并且如果当前无法编译代码，则可能会轻易中断。

So as you may see this approach is useful only if test.cpp and test.h reside side by side, in one directory. So it's the direction for further improvements. I could suggest to contact the person from this forum thread http://forums.codeblocks.org/index.php?topic=16892.0 and discuss how the situation can be improved. Maybe it's reasonable to involve gcc -MM -I<include directories> test.cpp invocation upon the project generation but this method is expensive and may easily break if the code can't be compiled at the moment.

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